Hello ya'll, got a problem. I live in Louisiana, and while my winters may not compare to some of ya'll's, it's been 30 degrees here lately AND THAT"S COLD!! At the beginning of winter, I turned the knob on the hose to allow the water to cirrculate. It blew nice and warm, not hot but warm enough. Now it blows strong, it just blows whatever is outside! And like I said for us it's cold! Any ideas? Because I don't know the first thing about heating/AC systems. Please help, preston
Could be your thermostat. Could be your heater core. I would try the thermostat first, cheap and easy. If it is staying stuck open then the water is constantly circulating and it will not get hot.
In my case when the heater core was going bad, I smelled antifreeze in the car. My bet whould be to go with the thermostat. You think it is cold down there? It was all of 9 degrees this morning up here.